%% ``The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved via the world wide web at http://www.erlang.org/.
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
%%
%% The Initial Developer of the Original Code is Ericsson Utvecklings AB.
%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings
%% AB. All Rights Reserved.''
%%
%% $Id: mod_dir.erl,v 1.1 2008/12/17 09:53:35 mikpe Exp $
%%
-module(mod_dir).
-export([do/1]).
-include("httpd.hrl").
%% do
do(Info) ->
?DEBUG("do -> entry",[]),
case Info#mod.method of
"GET" ->
case httpd_util:key1search(Info#mod.data,status) of
%% A status code has been generated!
{StatusCode,PhraseArgs,Reason} ->
{proceed,Info#mod.data};
%% No status code has been generated!
undefined ->
case httpd_util:key1search(Info#mod.data,response) of
%% No response has been generated!
undefined ->
do_dir(Info);
%% A response has been generated or sent!
Response ->
{proceed,Info#mod.data}
end
end;
%% Not a GET method!
_ ->
{proceed,Info#mod.data}
end.
do_dir(Info) ->
?DEBUG("do_dir -> Request URI: ~p",[Info#mod.request_uri]),
Path = mod_alias:path(Info#mod.data,Info#mod.config_db,
Info#mod.request_uri),
DefaultPath = mod_alias:default_index(Info#mod.config_db,Path),
%% Is it a directory?
case file:read_file_info(DefaultPath) of
{ok,FileInfo} when FileInfo#file_info.type == directory ->
DecodedRequestURI =
httpd_util:decode_hex(Info#mod.request_uri),
?DEBUG("do_dir -> ~n"
" Path: ~p~n"
" DefaultPath: ~p~n"
" DecodedRequestURI: ~p",
[Path,DefaultPath,DecodedRequestURI]),
case dir(DefaultPath,string:strip(DecodedRequestURI,right,$/),Info#mod.config_db) of
{ok, Dir} ->
Head=[{content_type,"text/html"},
{content_length,integer_to_list(httpd_util:flatlength(Dir))},
{date,httpd_util:rfc1123_date(FileInfo#file_info.mtime)},
{code,200}],
{proceed,[{response,{response,Head,Dir}},
{mime_type,"text/html"}|Info#mod.data]};
{error, Reason} ->
?ERROR("do_dir -> dir operation failed: ~p",[Reason]),
{proceed,
[{status,{404,Info#mod.request_uri,Reason}}|
Info#mod.data]}
end;
{ok,FileInfo} ->
?DEBUG("do_dir -> ~n"
" Path: ~p~n"
" DefaultPath: ~p~n"
" FileInfo: ~p",
[Path,DefaultPath,FileInfo]),
{proceed,Info#mod.data};
{error,Reason} ->
?LOG("do_dir -> failed reading file info (~p) for: ~p",
[Reason,DefaultPath]),
{proceed,
[{status,read_file_info_error(Reason,Info,DefaultPath)}|
Info#mod.data]}
end.
dir(Path,RequestURI,ConfigDB) ->
case file:list_dir(Path) of
{ok,FileList} ->
SortedFileList=lists:sort(FileList),
{ok,[header(Path,RequestURI),
body(Path,RequestURI,ConfigDB,SortedFileList),
footer(Path,SortedFileList)]};
{error,Reason} ->
{error,?NICE("Can't open directory "++Path++": "++Reason)}
end.
%% header
header(Path,RequestURI) ->
Header=
"<HTML>\n<HEAD>\n<TITLE>Index of "++RequestURI++"</TITLE>\n</HEAD>\n<BODY>\n<H1>Index of "++
RequestURI++"</H1>\n<PRE><IMG SRC=\""++icon(blank)++
"\" ALT=" "> Name Last modified Size Description
<HR>\n",
case regexp:sub(RequestURI,"[^/]*\$","") of
{ok,"/",_} ->
Header;
{ok,ParentRequestURI,_} ->
{ok,ParentPath,_}=regexp:sub(string:strip(Path,right,$/),"[^/]*\$",""),
Header++format(ParentPath,ParentRequestURI)
end.
format(Path,RequestURI) ->
{ok,FileInfo}=file:read_file_info(Path),
{{Year,Month,Day},{Hour,Minute,Second}}=FileInfo#file_info.mtime,
io_lib:format("<IMG SRC=\"~s\" ALT=\"[~s]\"> <A HREF=\"~s\">Parent directory</A> ~2.2.0w-~s-~w ~2.2.0w:~2.2.0w -\n",
[icon(back),"DIR",RequestURI,Day,
httpd_util:month(Month),Year,Hour,Minute]).
%% body
body(Path,RequestURI,ConfigDB,[]) ->
[];
body(Path,RequestURI,ConfigDB,[Entry|Rest]) ->
[format(Path,RequestURI,ConfigDB,Entry)|body(Path,RequestURI,ConfigDB,Rest)].
format(Path,RequestURI,ConfigDB,Entry) ->
case file:read_file_info(Path++"/"++Entry) of
{ok,FileInfo} when FileInfo#file_info.type == directory ->
{{Year,Month,Day},{Hour,Minute,Second}}=FileInfo#file_info.mtime,
EntryLength=length(Entry),
if
EntryLength > 21 ->
io_lib:format("<IMG SRC=\"~s\" ALT=\"[~s]\"> <A HREF=\"~s\">~-21.s..</A>~2.2.0w-~s-~w ~2.2.0w:~2.2.0w -\n",
[icon(folder),"DIR",RequestURI++"/"++Entry++"/",Entry,
Day,httpd_util:month(Month),Year,Hour,Minute]);
true ->
io_lib:format("<IMG SRC=\"~s\" ALT=\"[~s]\"> <A HREF=\"~s\">~s</A>~*.*c~2.2.0w-~s-~w ~2.2.0w:~2.2.0w -\n",
[icon(folder),"DIR",RequestURI++"/"++Entry++"/",Entry,
23-EntryLength,23-EntryLength,$ ,Day,
httpd_util:month(Month),Year,Hour,Minute])
end;
{ok,FileInfo} ->
{{Year,Month,Day},{Hour,Minute,Second}}=FileInfo#file_info.mtime,
Suffix=httpd_util:suffix(Entry),
MimeType=httpd_util:lookup_mime(ConfigDB,Suffix,""),
EntryLength=length(Entry),
if
EntryLength > 21 ->
io_lib:format("<IMG SRC=\"~s\" ALT=\"[~s]\"> <A HREF=\"~s\">~-21.s..</A>~2.2.0w-~s-~w ~2.2.0w:~2.2.0w~8wk ~s\n",
[icon(Suffix,MimeType),Suffix,RequestURI++"/"++Entry,
Entry,Day,httpd_util:month(Month),Year,Hour,Minute,
trunc(FileInfo#file_info.size/1024+1),MimeType]);
true ->
io_lib:format("<IMG SRC=\"~s\" ALT=\"[~s]\"> <A HREF=\"~s\">~s</A>~*.*c~2.2.0w-~s-~w ~2.2.0w:~2.2.0w~8wk ~s\n",
[icon(Suffix,MimeType),Suffix,RequestURI++"/"++Entry,
Entry,23-EntryLength,23-EntryLength,$ ,Day,
httpd_util:month(Month),Year,Hour,Minute,
trunc(FileInfo#file_info.size/1024+1),MimeType])
end;
{error,Reason} ->
""
end.
%% footer
footer(Path,FileList) ->
case lists:member("README",FileList) of
true ->
{ok,Body}=file:read_file(Path++"/README"),
"</PRE>\n<HR>\n<PRE>\n"++binary_to_list(Body)++
"\n</PRE>\n</BODY>\n</HTML>\n";
false ->
"</PRE>\n</BODY>\n</HTML>\n"
end.
%%
%% Icon mappings are hard-wired ala default Apache (Ugly!)
%%
icon(Suffix,MimeType) ->
case icon(Suffix) of
undefined ->
case MimeType of
[$t,$e,$x,$t,$/|_] ->
"/icons/text.gif";
[$i,$m,$a,$g,$e,$/|_] ->
"/icons/image2.gif";
[$a,$u,$d,$i,$o,$/|_] ->
"/icons/sound2.gif";
[$v,$i,$d,$e,$o,$/|_] ->
"/icons/movie.gif";
_ ->
"/icons/unknown.gif"
end;
Icon ->
Icon
end.
icon(blank) -> "/icons/blank.gif";
icon(back) -> "/icons/back.gif";
icon(folder) -> "/icons/folder.gif";
icon("bin") -> "/icons/binary.gif";
icon("exe") -> "/icons/binary.gif";
icon("hqx") -> "/icons/binhex.gif";
icon("tar") -> "/icons/tar.gif";
icon("wrl") -> "/icons/world2.gif";
icon("wrl.gz") -> "/icons/world2.gif";
icon("vrml") -> "/icons/world2.gif";
icon("vrm") -> "/icons/world2.gif";
icon("iv") -> "/icons/world2.gif";
icon("Z") -> "/icons/compressed.gif";
icon("z") -> "/icons/compressed.gif";
icon("tgz") -> "/icons/compressed.gif";
icon("gz") -> "/icons/compressed.gif";
icon("zip") -> "/icons/compressed.gif";
icon("ps") -> "/icons/a.gif";
icon("ai") -> "/icons/a.gif";
icon("eps") -> "/icons/a.gif";
icon("html") -> "/icons/layout.gif";
icon("shtml") -> "/icons/layout.gif";
icon("htm") -> "/icons/layout.gif";
icon("pdf") -> "/icons/layout.gif";
icon("txt") -> "/icons/text.gif";
icon("erl") -> "/icons/burst.gif";
icon("c") -> "/icons/c.gif";
icon("pl") -> "/icons/p.gif";
icon("py") -> "/icons/p.gif";
icon("for") -> "/icons/f.gif";
icon("dvi") -> "/icons/dvi.gif";
icon("uu") -> "/icons/uuencoded.gif";
icon("conf") -> "/icons/script.gif";
icon("sh") -> "/icons/script.gif";
icon("shar") -> "/icons/script.gif";
icon("csh") -> "/icons/script.gif";
icon("ksh") -> "/icons/script.gif";
icon("tcl") -> "/icons/script.gif";
icon("tex") -> "/icons/tex.gif";
icon("core") -> "/icons/tex.gif";
icon(_) -> undefined.
read_file_info_error(eacces,Info,Path) ->
read_file_info_error(403,Info,Path,
": Missing search permissions for one "
"of the parent directories");
read_file_info_error(enoent,Info,Path) ->
read_file_info_error(404,Info,Path,"");
read_file_info_error(enotdir,Info,Path) ->
read_file_info_error(404,Info,Path,
": A component of the file name is not a directory");
read_file_info_error(_,Info,Path) ->
read_file_info_error(500,none,Path,"").
read_file_info_error(StatusCode,none,Path,Reason) ->
{StatusCode,none,?NICE("Can't access "++Path++Reason)};
read_file_info_error(StatusCode,Info,Path,Reason) ->
{StatusCode,Info#mod.request_uri,
?NICE("Can't access "++Path++Reason)}.
